Update app.py

app.py

@@ -101,7 +101,7 @@ def read_file_content(file,max_length):
         tree = ET.parse(file)
         root = tree.getroot()
         xml = CompressXML(ET.tostring(root, encoding='unicode'))
-        return xml(:max_length)
+        return xml
     elif file.type == "text/markdown" or file.type == "text/md":
         md = mistune.create_markdown()
         content = md(file.read().decode())